// license:BSD-3-Clause // copyright-holders:R. Belmont /*************************************************************************** asc.h Apple Sound Chip (ASC) 344S0063 Enhanced Apple Sound Chip (EASC) 343S1063 ***************************************************************************/ #pragma once #ifndef __ASC_H__ #define __ASC_H__ //************************************************************************** // CONSTANTS //************************************************************************** // chip behavior types enum { ASC_TYPE_ASC = 0, // original discrete Apple Sound Chip ASC_TYPE_EASC = 1, // discrete Enhanced Apple Sound Chip ASC_TYPE_V8 = 2, // Subset of ASC included in the V8 ASIC (LC/LCII) ASC_TYPE_EAGLE = 3, // Subset of ASC included in the Eagle ASIC (Classic II) ASC_TYPE_SPICE = 4, // Subset of ASC included in the Spice ASIC (Color Classic) ASC_TYPE_SONORA = 5, // Subset of ASC included in the Sonora ASIC (LCIII) ASC_TYPE_VASP = 6, // Subset of ASC included in the VASP ASIC (IIvx/IIvi) ASC_TYPE_ARDBEG = 7 // Subset of ASC included in the Ardbeg ASIC (LC520) }; //************************************************************************** // INTERFACE CONFIGURATION MACROS //************************************************************************** #define MCFG_ASC_ADD(_tag, _clock, _type, _irqf) \ MCFG_DEVICE_ADD(_tag, ASC, _clock) \ MCFG_ASC_TYPE(_type) \ MCFG_IRQ_FUNC(_irqf) #define MCFG_ASC_REPLACE(_tag, _clock, _type, _irqf) \ MCFG_DEVICE_REPLACE(_tag, ASC, _clock) \ MCFG_ASC_TYPE(_type) \ MCFG_IRQ_FUNC(_irqf) #define MCFG_ASC_TYPE(_type) \ asc_device::static_set_type(*device, _type); #define MCFG_IRQ_FUNC(_irqf) \ downcast(device)->set_irqf(DEVCB_##_irqf); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> asc_device class asc_device : public device_t, public device_sound_interface { public: // construction/destruction asc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // inline configuration helpers static void static_set_type(device_t &device, int type); template void set_irqf(_write wr) { write_irq.set_callback(wr); } devcb_write_line write_irq; DECLARE_READ8_MEMBER(read); DECLARE_WRITE8_MEMBER(write); sound_stream *m_stream; protected: enum { R_VERSION = 0x800, R_MODE, R_CONTROL, R_FIFOMODE, R_FIFOSTAT, R_WTCONTROL, R_VOLUME, R_CLOCK, R_REG8, R_REG9, R_PLAYRECA, R_REGB, R_REGC, R_REGD, R_REGE, R_TEST }; // device-level overrides virtual void device_start(); virtual void device_reset(); virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); // inline data UINT8 m_chip_type; UINT8 m_fifo_a[0x400]; UINT8 m_fifo_b[0x400]; UINT8 m_regs[0x800]; UINT32 m_phase[4], m_incr[4]; int m_fifo_a_rdptr, m_fifo_b_rdptr; int m_fifo_a_wrptr, m_fifo_b_wrptr; int m_fifo_cap_a, m_fifo_cap_b; emu_timer *m_timer; }; // device type definition extern const device_type ASC; #endif /* __ASC_H__ */